If syndicateName equals "mp-syndicate-to" the delete on the next line will remove the only copy. And then it isn't send. Parameter "mp-slug" has the same problem.
When the syndicateName is replaced with something else, for example, the non default "slug" value, then the value will be send to the micropub endpoint.
If syndicateName equals "mp-syndicate-to" the delete on the next line will remove the only copy. And then it isn't send. Parameter "mp-slug" has the same problem.
https://github.com/keithjgrant/omnibear/blob/de0dca1ced31d8140eae09b3c0a5708d919a5eac/src/components/form/NoteForm.js#L233-L236